Possible Answer:
Millimeter.
Step-by-step explanation:
Judging by the item in the question, a straw, millimeter is probably the correct measurement of the width of it.
Answer:
bean
Step-by-step explanation:
Answer:
55
Step-by-step explanation:
3x-12=2x
+12
3x=2x +12
-2x
x=12
4(12)+ 9
48+9
=55
Answer:

Step-by-step explanation:
For
, there are two possible cases:

Solving for both cases, we get:
